TWI560679B - Backlight driving module and display device using the same - Google Patents
Backlight driving module and display device using the sameInfo
- Publication number
- TWI560679B TWI560679B TW103141566A TW103141566A TWI560679B TW I560679 B TWI560679 B TW I560679B TW 103141566 A TW103141566 A TW 103141566A TW 103141566 A TW103141566 A TW 103141566A TW I560679 B TWI560679 B TW I560679B
- Authority
- TW
- Taiwan
- Prior art keywords
- display device
- same
- driving module
- backlight driving
- backlight
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/3406—Control of illumination source
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/10—Intensity circuits
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/40—Details of LED load circuits
- H05B45/44—Details of LED load circuits with an active control inside an LED matrix
- H05B45/46—Details of LED load circuits with an active control inside an LED matrix having LEDs disposed in parallel lines
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/06—Adjustment of display parameters
- G09G2320/0626—Adjustment of display parameters for control of overall brightness
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
- G09G2330/04—Display protection
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
- G09G2330/12—Test circuits or failure detection circuits included in a display system, as permanent part thereof
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/3406—Control of illumination source
- G09G3/342—Control of illumination source using several illumination sources separately controlled corresponding to different display panel areas, e.g. along one dimension such as lines
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Liquid Crystal Display Device Control (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW103141566A TWI560679B (en) | 2014-12-01 | 2014-12-01 | Backlight driving module and display device using the same |
| US14/589,743 US9454944B2 (en) | 2014-12-01 | 2015-01-05 | Display apparatus and backlight driving module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW103141566A TWI560679B (en) | 2014-12-01 | 2014-12-01 | Backlight driving module and display device using the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| TW201621867A TW201621867A (en) | 2016-06-16 |
| TWI560679B true TWI560679B (en) | 2016-12-01 |
Family
ID=56079555
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW103141566A TWI560679B (en) | 2014-12-01 | 2014-12-01 | Backlight driving module and display device using the same |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US9454944B2 (en) |
| TW (1) | TWI560679B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI650947B (en) * | 2017-12-22 | 2019-02-11 | 隆達電子股份有限公司 | Filter circuit and control system |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105976769A (en) * | 2016-07-12 | 2016-09-28 | 武汉华星光电技术有限公司 | Liquid crystal display and method for reducing power consumption of liquid crystal display |
| CN209070956U (en) * | 2019-01-02 | 2019-07-05 | 北京京东方光电科技有限公司 | Backlight drive circuit, backlight and display device |
| CN111290171B (en) * | 2020-02-18 | 2023-04-11 | 京东方科技集团股份有限公司 | Direct type backlight source, backlight module and display device |
| US11763760B1 (en) * | 2022-04-02 | 2023-09-19 | Tcl China Star Optoelectronics Technology Co., Ltd. | Backlight module and display device |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100521858C (en) * | 2003-05-28 | 2009-07-29 | 三星电机株式会社 | Backlight inverter for liquid crystal display panel with self-protection function |
| TW200949808A (en) * | 2008-05-23 | 2009-12-01 | Innolux Display Corp | Backlight driving circuit and display device using the same |
| CN1711807B (en) * | 2002-12-02 | 2010-07-28 | 三星电子株式会社 | Power supply device, backlight unit and liquid crystal display device having the same |
| TW201234924A (en) * | 2010-12-08 | 2012-08-16 | Rohm Co Ltd | Drive circuit for optical element and light emitting device and electronic device using same |
| TW201315285A (en) * | 2011-08-30 | 2013-04-01 | Magnachip Semiconductor Ltd | LED driver apparatus |
| CN101426323B (en) * | 2007-10-30 | 2014-06-11 | 三星显示有限公司 | Backlight driver and liquid crystal display device including the same |
| US20140333520A1 (en) * | 2013-05-08 | 2014-11-13 | Shenzhen China Star Optoelectronics Technology Co., Ltd | Led backlight driving circuit, backlight unit, and lcd device |
| US20140340295A1 (en) * | 2013-05-20 | 2014-11-20 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Led backlight driving circuit, lcd device, and method for driving the led backlight driving circuit |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7847783B2 (en) * | 2005-10-11 | 2010-12-07 | O2Micro International Limited | Controller circuitry for light emitting diodes |
| US8081199B2 (en) * | 2009-06-26 | 2011-12-20 | Panasonic Corporation | Light emitting element drive apparatus, planar illumination apparatus, and liquid crystal display apparatus |
| TWI419609B (en) * | 2009-08-19 | 2013-12-11 | Novatek Microelectronics Corp | Led device with simultaneous open and short detection function and method thereof |
| US8084960B2 (en) * | 2009-12-30 | 2011-12-27 | O2Micro, Inc | Circuits and methods for powering light source with balanced currents |
| KR101876561B1 (en) * | 2011-08-26 | 2018-07-10 | 엘지디스플레이 주식회사 | Liquid Crystal Display Device and Driving Method the same |
| US9258862B2 (en) * | 2013-05-08 | 2016-02-09 | Shenzhen China Star Optoelectronics Technology Co., Ltd | LED backlight driving circuit, LCD device, and method for driving the LED backlight driving circuit |
-
2014
- 2014-12-01 TW TW103141566A patent/TWI560679B/en active
-
2015
- 2015-01-05 US US14/589,743 patent/US9454944B2/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1711807B (en) * | 2002-12-02 | 2010-07-28 | 三星电子株式会社 | Power supply device, backlight unit and liquid crystal display device having the same |
| CN100521858C (en) * | 2003-05-28 | 2009-07-29 | 三星电机株式会社 | Backlight inverter for liquid crystal display panel with self-protection function |
| CN101426323B (en) * | 2007-10-30 | 2014-06-11 | 三星显示有限公司 | Backlight driver and liquid crystal display device including the same |
| TW200949808A (en) * | 2008-05-23 | 2009-12-01 | Innolux Display Corp | Backlight driving circuit and display device using the same |
| TW201234924A (en) * | 2010-12-08 | 2012-08-16 | Rohm Co Ltd | Drive circuit for optical element and light emitting device and electronic device using same |
| TW201315285A (en) * | 2011-08-30 | 2013-04-01 | Magnachip Semiconductor Ltd | LED driver apparatus |
| US20140333520A1 (en) * | 2013-05-08 | 2014-11-13 | Shenzhen China Star Optoelectronics Technology Co., Ltd | Led backlight driving circuit, backlight unit, and lcd device |
| US20140340295A1 (en) * | 2013-05-20 | 2014-11-20 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Led backlight driving circuit, lcd device, and method for driving the led backlight driving circuit |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI650947B (en) * | 2017-12-22 | 2019-02-11 | 隆達電子股份有限公司 | Filter circuit and control system |
| US10756706B2 (en) | 2017-12-22 | 2020-08-25 | Lextar Electronics Corporation | PWM filter circuit and related control system |
Also Published As
| Publication number | Publication date |
|---|---|
| US20160155417A1 (en) | 2016-06-02 |
| US9454944B2 (en) | 2016-09-27 |
| TW201621867A (en) | 2016-06-16 |
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